This effect was generated in Filter Forge, a Photoshop plugin that allows you to create your own filters.
Once again, an HDR style filter but with a straight focus on getting it right. I added in the Hue slider so that there could be a variety of results but basically this is for setting a wider dynamic range.
It seems to work best on images that have a hazy grey cast to them, in my case taken by a cheap digital camera on an awful, hazy sunny day in the shade of a building.
hdr, color correction